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        <li class="md-nav__item">
  <a href="#epsilon-object-language" class="md-nav__link">
    Epsilon Object Language
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        <li class="md-nav__item">
  <a href="#epsilon-validation-language" class="md-nav__link">
    Epsilon Validation Language
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  <a href="#epsilon-generation-language" class="md-nav__link">
    Epsilon Generation Language
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  <a href="#epsilon-transformation-language" class="md-nav__link">
    Epsilon Transformation Language
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  <a href="#epsilon-and-emf-models" class="md-nav__link">
    Epsilon and EMF models
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    Epsilon and UML models
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    Epsilon and Simulink models
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    Epsilon and other types of models
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    Eugenia
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    Workflow (ANT Tasks)
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    Extending Epsilon
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    Installation
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    Epsilon Developers
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<h1 id="articles">Articles<a class="headerlink" href="#articles" title="Permanent link">&para;</a></h1>
<p>This page links to more than <strong>80 articles</strong> on various aspects of Epsilon. Should you find that an article is outdated, please <a href="https://www.eclipse.org/epsilon/forum">let us know</a>.</p>
<h2 id="epsilon-object-language">Epsilon Object Language<a class="headerlink" href="#epsilon-object-language" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="eol-syntax-updates">EOL syntax updates</a>: This article summarizes changes in the EOL concrete syntax over time.</li>
<li><a href="extended-properties">Extended Properties</a>: This article demonstrates the extended properties mechanism in EOL (and by inheritance, in all languages in Epsilon).</li>
<li><a href="call-java-from-epsilon">Call Java from Epsilon</a>: This article demonstrates how to create Java objects, access their properties and call their methods from Epsilon languages.</li>
<li><a href="run-epsilon-from-java">Running Epsilon from Java</a>: This article demonstrates how to parse and execute Epsilon programs and load models from headless Java applications.</li>
<li><a href="epsilon-pojos">Running Epsilon Programs on POJOs</a>: This article demonstrates how to run EOL programs and EGL templates on plain-old Java objects (POJOs).</li>
<li><a href="lambda-expressions">Call Java functional interfaces from Epsilon</a>: This article demonstrates how to call native methods which take functions as their parameter, using lambdas and streams directly from Epsilon using EOL syntax.</li>
<li><a href="profiling">Profiling Epsilon Programs</a>: This article demonstrates how to profile Epsilon programs using the platform's built-in profiling tools.</li>
<li><a href="eol-interpreter-view">EOL Interpreter View</a>: This article demonstrates an Eclipse view for running EOL scripts against selected model elements in EMF-based editors.</li>
<li><a href="debugger">Epsilon Debugger</a>: Demonstrates how to use the Eclipse-based step-by-step debugging support in the Epsilon languages.</li>
</ul>
<h2 id="epsilon-validation-language">Epsilon Validation Language<a class="headerlink" href="#epsilon-validation-language" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="evl-gmf-integration">EVL-GMF Integration</a>: This article demonstrates evaluating EVL constraints from within a GMF-based editor.</li>
<li><a href="evl-emf-integration">EVL-EMF Validation Integration</a>: This article demonstrates contributing EVL constraints to EMF's validation framework.</li>
<li><a href="parallel-execution">Parallel Execution</a>: This article explains how to use the parallel module implementations for EOL and rule-based languages like EVL.</li>
</ul>
<h2 id="epsilon-generation-language">Epsilon Generation Language<a class="headerlink" href="#epsilon-generation-language" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="code-generation-tutorial-egl">Code Generation Tutorial with EGL</a>: This article demonstrates using EGL templates to generate HTML files from an XML document.</li>
<li><a href="epsilon-pojos">Running Epsilon Programs on POJOs</a>: This article demonstrates how to run EOL programs and EGL templates on plain-old Java objects (POJOs).</li>
<li><a href="egl-template-operations">Using template operations in EGL</a>: This article demonstrates template operations for writing re-usable code in EGL (the model-to-text language of Epsilon).</li>
<li><a href="egl-server-side">EGL as a server-side language</a>: This article demonstrates using EGL (the model-to-text language of Epsilon) in Tomcat to produce HTML pages from EMF models on the fly.</li>
<li><a href="egx-parameters">Co-ordinating EGL templates with EGX</a>: This article demonstrates how to parameterize EGL templates and execute them multiple times to produce multiple files.</li>
<li><a href="egl-invoke-egl">Re-using EGL templates</a>: This article demonstrates how to invoke other EGL templates and direct their output to calling EGL template.</li>
<li><a href="egl-patch">EGL Patch Templates</a>: This article demonstrates how to patch existing files with EGL.</li>
</ul>
<h2 id="epsilon-transformation-language">Epsilon Transformation Language<a class="headerlink" href="#epsilon-transformation-language" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="xml-to-emf">XML to EMF Transformation</a>: This article shows how to transform an XML document into an EMF model using the Epsilon Transformation Language and Epsilon's XML driver</li>
</ul>
<h2 id="epsilon-and-emf-models">Epsilon and EMF models<a class="headerlink" href="#epsilon-and-emf-models" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="https://www.eclipse.org/emfatic/">Emfatic language reference</a>: Emfatic is a language designed to represent EMF Ecore models in a textual form.  This article details the syntax of Emfatic and the mapping between Emfatic declarations and the corresponding Ecore constructs.</li>
<li><a href="reflective-emf-tutorial">Reflective EMF tutorial</a>: This tutorial demonstrates how to create an EMF Ecore metamodel and a sample model that conforms to it reflectively (i.e. without generating any code).</li>
<li><a href="epsilon-emf">Epsilon and EMF</a>: Frequently-asked questions related to querying and modifying EMF-based models with Epsilon.</li>
<li><a href="epackage-registry-view">The EMF EPackage Registry View</a>: This article demonstrates the EPackage Registry view which allows developers to inspect the contents of the registered EMF EPackages.</li>
<li><a href="../exeed">Exeed annotation reference</a>: This article lists the annotations you can use on your metamodels to customize the look of the Exeed model editor.</li>
<li><a href="inspect-models-exeed">Inspecting EMF models with Exeed</a>: This article demonstrates how you can use Exeed to inspect the structure of your EMF models.</li>
<li><a href="in-memory-emf-model">Working with custom EMF resources</a>: This article demonstrates how you can work with custom EMF resources in Epsilon.</li>
<li><a href="../flexmi">Parsing XML documents as EMF models with Flexmi</a>: This article demonstrates how you can use Flexmi to parse XML documents in a fuzzy manner as instances of Ecore metamodels.</li>
<li><a href="modular-flexmi">Modularity Mechanisms in Flexmi</a>: This article demonstrates how you can break down Flexmi models over multiple files and use templates to capture complex reusable structures in your models.</li>
<li><a href="cdo-emc/">Connecting to CDO repositories</a>: This article shows how to connect to an Eclipse Connected Data Objects model repository from Epsilon.</li>
<li><a href="epsilon-in-ecore">Using Epsilon for Ecore Validation, Setting and Invocation Delegation</a>: This shows how to use Epsilon in an Ecore model to provide Invocation and Setting delegation with EOL and Validation Delegation with EVL.</li>
</ul>
<h2 id="epsilon-and-uml-models">Epsilon and UML models<a class="headerlink" href="#epsilon-and-uml-models" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="profiled-uml-models">Managing Profiled UML Models in Epsilon</a>: This article shows how to create and query profiled Eclipse UML models using Epsilon's core language.</li>
</ul>
<h2 id="epsilon-and-simulink-models">Epsilon and Simulink models<a class="headerlink" href="#epsilon-and-simulink-models" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="simulink">Scripting Simulink models using Epsilon</a>: In this article we demonstrate how you can query and modify Simulink models in Epsilon.</li>
<li><a href="simulink-stateflow">Managing Matlab Simulink/Stateflow models from Epsilon</a>: This tutorial shows you how to manipulate Simulink and Stateflow blocks from within Epsilon.</li>
</ul>
<h2 id="epsilon-and-other-types-of-models">Epsilon and other types of models<a class="headerlink" href="#epsilon-and-other-types-of-models" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="plain-xml">Scripting XML documents using Epsilon</a>: In this article we demonstrate how you can create, query and modify plain standalone XML documents (i.e. no XSD/DTD needed) in Epsilon programs using the PlainXML driver.</li>
<li><a href="xsd-xml">Scripting XML documents that conform to an XSD schema using Epsilon</a>: In this article we demonstrate how you can create, query and modify XML documents backed by an XSD schema in Epsilon.</li>
<li><a href="yaml-emc">Scripting YAML documents using Epsilon</a>: This article demonstrates how you can query and modify YAML documents with Epsilon programs using the YAML driver.</li>
<li><a href="json-emc">Scripting JSON documents using Epsilon</a>: This article shows how you can create, query and modify JSON documents with Epsilon programs using the JSON driver.</li>
<li><a href="csv-emc">Scripting CSV files using Epsilon</a>: This article demonstrates how you can query CSV files with Epsilon programs using the CSV driver.</li>
<li><a href="excel">Scripting Excel spreadsheets using Epsilon</a>: In this article we demonstrate how you can create, query and modify Excel spreadsheets in Epsilon programs.</li>
<li><a href="html">Scripting HTML documents using Epsilon</a>: In this article we demonstrate how you can create, query and modify HTML documents in Epsilon programs using the HTML driver.</li>
<li><a href="bibtex">Scripting BibTeX files using Epsilon</a>: In this article we demonstrate how you can query a list of references stored in BibTeX files with Epsilon programs using the BibTeX driver.</li>
<li><a href="jdt">Treating Java code as a model in Epsilon</a>: In this article we demonstrate how Epsilon languages can query Java code as if it were a model, using a driver that builds on the Eclipse Java Development Tools.</li>
</ul>
<h2 id="eugenia">Eugenia<a class="headerlink" href="#eugenia" title="Permanent link">&para;</a></h2>
<h3 id="fundamentals">Fundamentals<a class="headerlink" href="#fundamentals" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="../eugenia">Eugenia GMF Tutorial</a>: This article provides a guide to using Eugenia for developing GMF editors, as well as its complete list of features and supported annotations.</li>
<li><a href="eugenia-polishing">Customizing an editor generated with Eugenia</a>: This article demonstrates Eugenia's polishing transformations, which can be used to customize GMF editors in a systematic and reproducible way.</li>
<li><a href="eugenia-patching">Applying source code patches to an editor generated with Eugenia</a>: This article demonstrates Eugenia's patch generation and application functionality, which can be used to customize the Java source code generated by GMF in a systematic and reproducible way.</li>
<li><a href="eugenia-ant">Eugenia: Automated Invocation with Ant</a>: This article demonstrates how to run Eugenia from Ant, and some of the additional features offered through the Ant task.</li>
</ul>
<h3 id="recipes">Recipes<a class="headerlink" href="#recipes" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="eugenia-nodes-with-images">Eugenia: Nodes with images instead of shapes</a>: This article shows how to create nodes in your GMF editor that are represented with images (png, jpg etc.) instead of the standard GMF shapes (rectangle, ellipse etc.)</li>
<li><a href="eugenia-nodes-with-runtime-images">Eugenia: Nodes with images defined at run-time</a>: This article addresses the case where the end-user needs to set an image for each node at runtime.</li>
<li><a href="eugenia-nodes-with-centred-layout">Eugenia: Nodes with a centred layout</a>: This article shows how to create nodes in your GMF editor whose contents are centred both vertically and horizontally.</li>
<li><a href="eugenia-phantom-nodes">Eugenia: Phantom nodes in GMF editors</a>: This article demonstrates how to define GMF phantom nodes in Eugenia.</li>
</ul>
<h2 id="picto">Picto<a class="headerlink" href="#picto" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="../picto">Visualising Models with Picto</a>: Picto is an Eclipse view for visualising models via model-to-text transformation to SVG/HTML. The article introduces Picto and shows the tool in action.</li>
<li><a href="picto-sequence-diagrams">Drill-Down Sequence Diagrams with Picto</a>: This article demonstrates using Picto and its PlantUML integration to generate drill-down sequence diagrams from models conforming to a minimal EMF-based sequence diagram language.</li>
<li><a href="visualising-models-with-picto-and-sirius">Visualising Models with Picto and Sirius</a>: This article demonstrates using Picto to produce dynamic web-based views (pie and bar charts) from Sirius-based models.</li>
<li><a href="picto-xtext">Visualising Xtext models with Picto</a>: This article shows how Picto can be used to produce graphical views from Xtext-based models.</li>
<li><a href="picto-tables">Table visualisations with Picto and Pinset</a>: This article shows how to create table views in Picto that render static CSV files or those generated with a Pinset transformation.</li>
<li><a href="picto-embedded-views">Embedding Picto views in static Markdown or HTML documents</a>: This article shows how to embed Picto views to create Markdown or HTML-based model reports.</li>
</ul>
<h2 id="workflow-ant-tasks">Workflow (ANT Tasks)<a class="headerlink" href="#workflow-ant-tasks" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="running-epsilon-ant-tasks-from-command-line">Running Epsilon's ANT Tasks from Command Line</a>: This article shows how to run Epsilon's ANT tasks from command line or in the context of a CI build.</li>
</ul>
<h2 id="development-environments">Development Environments<a class="headerlink" href="#development-environments" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="vscode">VS Code</a>: This article provides an overview of how you can edit and run Epsilon programs in the VS Code IDE.</li>
<li><a href="https://github.com/epsilonlabs/sublime">Sublime</a>: This repository provides a package that adds Epsilon syntax highlighting capabilities to the <a href="https://www.sublimetext.com">Sublime</a> editor.</li>
</ul>
<h2 id="human-usable-textual-notation">Human-Usable Textual Notation<a class="headerlink" href="#human-usable-textual-notation" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="hutn-basic">Using the Human-Usable Textual Notation (HUTN) in Epsilon</a>: This article demonstrates how to specify models using a textual notation.</li>
<li><a href="hutn-configuration">Customising Epsilon HUTN documents with configuration</a>: This article demonstrates how to customise Epsilon HUTN documents with a configuration model.</li>
<li><a href="hutn-compliance">Compliance of Epsilon HUTN to the OMG HUTN Standard</a>: This article summarises the similarities and differences between the Epsilon HUTN implementation and the OMG HUTN standard.</li>
</ul>
<h2 id="teaching-material">Teaching Material<a class="headerlink" href="#teaching-material" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="exercises">MDE Exercises</a>: This article provides a number of exercises which enable you to test your knowledge on MDE, EMF and Epsilon.</li>
<li><a href="playground">Epsilon Playground</a>: The Epsilon Playground is a web application for fiddling with metamodelling, modelling and automated model management using Emfatic, Flexmi and Epsilon's languages.</li>
</ul>
<h2 id="technical-support">Technical Support<a class="headerlink" href="#technical-support" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="troubleshooting">Troubleshooting</a>: A list of common issues that (particularly new) users of Epsilon tend to run into.</li>
<li><a href="minimal-examples">Constructing a helpful minimal example</a>: From time to time, you may run into a problem when using Epsilon or find a bug. This article describes how to construct a minimal example that we can use to reproduce the problem on our machine.</li>
</ul>
<h2 id="extending-epsilon">Extending Epsilon<a class="headerlink" href="#extending-epsilon" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="developing-a-new-language">Developing a new Epsilon Language</a>: This article demonstrates how to develop a new language on top of Epsilon.</li>
<li><a href="developing-a-new-emc-driver">Developing a new EMC Driver</a>: This article demonstrates how to develop a new driver for Epsilon's Model Connectivity layer (EMC).</li>
<li><a href="monitoring-and-instrumenting-epsilon-programs">Monitoring and Instrumenting Epsilon Programs</a>: This article demonstrates how Epsilon interpreters provide support for hooking into the execution of model management programs.</li>
</ul>
<h2 id="installation">Installation<a class="headerlink" href="#installation" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="epsilon-1.x">Working with Epsilon 1.x</a>: This article contains instructions for installing legacy versions of Epsilon prior to 2.0.</li>
<li><a href="dev-setup">Setting up Eclipse for Epsilon development</a>: This article explains how to easily set up and configure an Eclipse IDE for contributing to Epsilon.</li>
</ul>
<h2 id="epsilon-developers">Epsilon Developers<a class="headerlink" href="#epsilon-developers" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="running-from-source">Running Epsilon from source</a>: This article demonstrates how to run Epsilon from source in your machine.</li>
<li><a href="call-for-user-stories">Call for User Stories</a>: This is a kind request to all Epsilon Users.</li>
<li><a href="manage-the-epsilon-website-locally">Manage the Epsilon website locally</a>: This article demonstrates how to manage the Epsilon website in your machine.</li>
<li><a href="development-principles">Epsilon development principles</a>: These are the guiding principles used by the developers of Epsilon.</li>
<li><a href="target-platform">Managing the target platform</a>: This article outlines how to manage the target platform that Epsilon is built against.</li>
<li><a href="adding-new-plugins">Adding new plugins</a>: This article outlines the process of adding new plugins to the main Epsilon repository.</li>
<li><a href="preparing-the-macosx-distribution">Preparing the macOS distribution</a>: This article outlines the process of signing the Eclipse macOS distribution.</li>
<li><a href="labsupdatesite">Publishing to the EpsilonLabs Updatesite</a>: This article outlines the process for publishing a plugin (EMC driver/language/tool) from the EpsilonLabs Github organisation to the EpsilonLabs updatesite.</li>
<li><a href="release-tasks">Releasing a new version of Epsilon</a>: This article lists all the tasks required for releasing a version of Epsilon.</li>
<li><a href="maven-release">Releasing a new version to Maven Central</a>: This article outlines how to release a new version of the Epsilon standalone artifacts to Maven Central.</li>
</ul>





                
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